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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
LG Electronics
71/115
LGE Property
4.6 Receiver & Speaker trouble
Check Points
-Speaker contact
-Audio amp soldering
TP1
TP2
0
R303
0
R309
LM49151TLX
EUSY0390501
U303
4
E
4
D
3
D
4
C
2
A
E2
B3
B2
A1
C3
E3
C2
D2
C1
A3
D1
A4
E1
4
B
1
B
D
D
V
D
D
V
SL
INM+
LSOUT+
INM-
LSOUT-
INL
SET
INR
HPL
BYPASS
I2CVDD
SDA
SCL
HPR
D
N
G
S
S
V
P
C
N1
C
P1
C
D
N
G
P
C
220n
C313
220n
C314
220n
C318
220n
C319
220n
C320
220n
C321
2.2u
C322
0.1u
C323
0
R319
2.2u
C324
C325
2.2u
0.1u
C326
100K
R320
C328
0.1u
0.1u
C329
R324
0
VBAT
RCV_P
RCV_N
I2C2_SCL
I2C2_SDA
BB_SND_R
BB_SND_L
2V62_VIO
HSO_R
HSO_L
RCV_SPK_N
FM_SND_L
FM_SND_R
RCV_SPK_P
EAR_GND
EAR_GND
AUDIO AMP SUB SYSTEM & SIGNAL DISTRIBUTOR
TP1
TP2
CN4
2
1
39p
C1
C2
39p
VA2
VA1
0
R2
0
R1
RCV_SPK_P
RCV_SPK_N
Содержание GT350
Страница 1: ...Service Manual Model GT350 Internal Use Only Service Manual GT350 Date May 2010 Issue 1 0 ...
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